Description: In April 2010 an explosion occurred on an oil rig in the Gulf of Mexico, reportedly killing 11 people, and, according to federal experts, causing the worst oil spill in U.S. history. Millions of barrels of oil are believed to have leaked into the Gulf of Mexico. As the oil spreads, the implications for harm to wildlife grow. The United States has many laws that protect wildlife from harm. This report discusses three: the Endangered Species Act, the Marine Mammal Protection Act, and the Migratory Bird Treaty Act.

Description: This report describes the revised environmental rules of the Clean Water Act, the background of previous Clean Water Act rules and the Clinton Administration proposal for revising these rules, and perspectives of key interest groups on the proposal and final regulations. It also identifies several issues likely to be of congressional interest as implementation of the revised rules proceeds.

Description: This report discusses the Safe Drinking Water Act Amendments of 1996. These amendments directed the Environmental Protection Agency (EPA) to update the standard for arsenic in drinking water.

Description: This report discusses the 1996 Safe Drinking Water Act Amendments. These amendments directed the Environmental Protection Agency (EPA) to update the standard for arsenic in drinking water.

Description: The 111th Congress may elect to consider legislation (H.R. 500 and S. 237) that has been introduced to amend and reauthorize the Nonindigenous Aquatic Nuisance Prevention and Control Act of 1990 to further study vessel ballast water management standards and modify how ballast water is handled. This report provides background on various approaches to ballast water management and reviews current ballast water management laws and programs.

Description: This report presents a summary of the law, describing the essence of the statute without discussing its implementation. Other CRS products do discuss implementation, including CRS Report RL33800, Water Quality Issues in the 110th Congress: Oversight and Implementation, and numerous products cited in that report.

Description: This report discusses the total maximum daily load (TMDL) program which regulates pollutants to ensure that water quality standards can be attained; section 303(d) of the Clean Water Act requires states to identify waters that are impaired by pollution, even after application of pollution controls. The report focuses on new challenges facing the TMDL program, including more complex TMDLs, larger scale impairments, and nonpoint sources.

Description: This report discusses the total maximum daily load (TMDL) program which regulates pollutants to ensure that water quality standards can be attained; section 303(d) of the Clean Water Act requires states to identify waters that are impaired by pollution, even after application of pollution controls. The report focuses on new challenges facing the TMDL program, including more complex TMDLs, larger scale impairments, and nonpoint sources.

Description: Section 303(d) of the Clean Water Act requires states to identify waters that are impaired by pollution, even after application of pollution controls. For those waters, states must establish a total maximum daily load (TMDL) of pollutants to ensure that water quality standards can be attained. Implementation of this provision has been dormant until recently, when states and EPA were prodded by numerous lawsuits. The TMDL issue has become controversial, in part because of requirements and costs now facing states to implement a 25-year-old provision of the law. Congressional activity to reauthorize the Act, a possibility in the 2nd Session of the 105th Congress, could include TMDL issues, but the direction for any such action is unclear at this time.

Description: Section 303(d) of the Clean Water Act requires states to identify waters that are impaired by pollution, even after application of pollution controls. For those waters, states must establish a total maximum daily load (TMDL) of pollutants to ensure that water quality standards can be attained. Implementation of this provision has been dormant until recently, when states and EPA were prodded by numerous lawsuits. The TMDL issue has become controversial, in part because of requirements and costs now facing states to implement a 25-year-old provision of the law. Congressional activity to reauthorize the Act, a possibility in the 2nd Session of the 105th Congress, could include TMDL issues, but the direction for any such action is unclear at this time.

Description: Section 303(d) of the Clean Water Act requires states to identify waters that are impaired by pollution, even after application of pollution controls. For those waters, states must establish a total maximum daily load (TMDL) of pollutants to ensure that water quality standards can be attained. Implementation was dormant until recently, when states and EPA were prodded by numerous lawsuits.

Description: Section 303(d) of the Clean Water Act requires states to identify waters that are impaired by pollution, even after application of pollution controls. For those waters, states must establish a total maximum daily load (TMDL) of pollutants to ensure that water quality standards can be attained. Implementation was dormant until recently, when states and EPA were prodded by numerous lawsuits.

Description: Section 303(d) of the Clean Water Act requires states to identify waters that are impaired by pollution, even after application of pollution controls. For those waters, states must establish a total maximum daily load (TMDL) of pollutants to ensure that water quality standards can be attained. Implementation was dormant until recently, when states and EPA were prodded by numerous lawsuits.

Description: This report discusses the section 303(d) of the Clean Water Act, which requires states to identify waters that are impaired by pollution, even after application of pollution controls. For those waters, states must establish a total maximum daily load (TMDL) of pollutants to ensure that water quality standards can be attained. Implementation of this provision has been dormant until recently, when states and EPA were prodded by numerous lawsuits. The TMDL issue has become controversial, in part because of requirements and costs now facing states to implement a 25-year-old provision of the law. Congressional activity to reauthorize the Act, a possibility in the 2nd Session of the 105th Congress, could include TMDL issues, but the direction for any such action is unclear at this time.

Description: This report discusses the section 303(d) of the Clean Water Act, which requires states to identify waters that are impaired by pollution, even after application of pollution controls. For those waters, states must establish a total maximum daily load (TMDL) of pollutants to ensure that water quality standards can be attained. Implementation was dormant until states and EPA were prodded by lawsuits. The TMDL program has become controversial, in part because of requirements and costs now facing states to implement this 35-year-old provision of the law, as well as industries, cities, farmers, and others who may be required to use new pollution controls to meet TMDL requirements. In July 2000, EPA issued revisions to strengthen the program. The rule was widely criticized, and congressional interest was high. The 2000 rule did not go into effect, and in March 2003, EPA withdrew the rule to consider whether to issue an entirely new rule or other options; no timetable has been announced. Consequently, the program continues to operate under regulations issued in 1992.

Description: The Environmental Protection Agency is attempting to develop a regulatory response to a 2006 federal court ruling that vacated a long-standing rule that exempts discharges associated with the normal operation of vessels from permit requirements of the Clean Water Act. Concern that this ruling could require millions of recreational boaters to obtain permits has led to the introduction of legislation to exempt these and other types of vessels from water quality regulation. This report discusses background to the issue; bills introduced in response, two of which were passed by Congress on July 22; and draft permits proposed by EPA on June 17.

Description: The Environmental Protection Agency is attempting to develop a regulatory response to a 2006 federal court ruling that vacated a long-standing rule that exempts discharges associated with the normal operation of vessels from permit requirements of the Clean Water Act. Concern that this ruling could require millions of recreational boaters to obtain permits has led to the introduction of legislation to exempt these and other types of vessels from water quality regulation. This report discusses background to the issue; bills introduced in response, two of which were passed by Congress on July 22; and draft permits proposed by EPA on June 17.

Description: Section 401 of the Clean Water Act requires that an applicant for a federal license or permit provide a certification that any discharges from the facility will comply with the Act, including water quality standard requirements. Disputes have arisen over the states' exercise of authority under Section 401. Until recently, much of the debate over the Section 401 certification issue has been between states and hydropower interests. A 1994 Supreme Court decision which upheld the states' authority in this area dismayed development and hydroelectric power interest groups. The dispute between states and industry groups was a legislative issue in the 104th Congress through an amendment to a House-passed Clean Water Act re-authorization bill; the Senate did not act on that bill.